1. A2VI-Lab, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
2. Department of Computer Science, Sapienza University, Rome, Italy
3. Department of Information Engineering, Computer Science and Mathematics, University of L'Aquila, L'Aquila, Italy
4. Instituto de Ciência e Inovaçã em Engenharia Mecânica e Engenharia Industrial, Departamento de Engenharia Mecâanica, Faculdade de Engenharia, Universidade do Porto, Porto, Portugal